<template>
  <div class="app-container">
    <ContentWrap>
      <CustomBox>
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
          <el-form-item label="菜单名称" prop="menuName">
            <el-input
              v-model="queryParams.menuName"
              placeholder="请输入菜单名称"
              clearable
              @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <el-form-item label="状态" prop="status">
            <el-select v-model="queryParams.status" placeholder="菜单状态" clearable>
              <el-option
                v-for="dict in dict.type.sys_normal_disable"
                :key="dict.value"
                :label="dict.label"
                :value="dict.value"
              />
            </el-select>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
              type="primary"
              plain
              icon="el-icon-plus"
              size="mini"
              @click="handleAdd"
              v-hasPermi="['system:menu:add']"
            >新增
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
              type="info"
              plain
              icon="el-icon-sort"
              size="mini"
              @click="toggleExpandAll"
            >展开/折叠
            </el-button>
          </el-col>
          <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table
          v-if="refreshTable"
          v-loading="loading"
          :data="menuList"
          row-key="menuId"
          :default-expand-all="isExpandAll"
          border :height="getAvailableHeight"
          :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
        >
          <el-table-column prop="menuName" label="菜单名称" :show-overflow-tooltip="true" width="360"></el-table-column>
          <el-table-column prop="icon" label="图标" align="center" width="100">
            <template slot-scope="scope">
              <svg-icon :icon-class="scope.row.icon"/>
            </template>
          </el-table-column>
          <el-table-column prop="orderNum" label="排序" width="60"></el-table-column>
          <el-table-column prop="perms" label="权限标识" :show-overflow-tooltip="true"></el-table-column>
          <el-table-column prop="component" label="组件路径" :show-overflow-tooltip="true"></el-table-column>
          <el-table-column prop="status" label="状态" width="80">
            <template slot-scope="scope">
              <dict-tag :options="dict.type.sys_normal_disable" :value="scope.row.status"/>
            </template>
          </el-table-column>
          <el-table-column label="创建时间" align="center" prop="createTime">
            <template slot-scope="scope">
              <span>{{ parseTime(scope.row.createTime) }}</span>
            </template>
          </el-table-column>
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
            <template slot-scope="scope">
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
                v-hasPermi="['system:menu:edit']"
              >修改
              </el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-plus"
                @click="handleAdd(scope.row)"
                v-hasPermi="['system:menu:add']"
              >新增
              </el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
                v-hasPermi="['system:menu:remove']"
              >删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>

        <!-- 添加或修改菜单对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="680px" append-to-body>
          <el-form ref="form" :model="form" :rules="rules" label-width="100px">
            <el-row>
              <el-col :span="24">
                <el-form-item label="上级菜单" prop="parentId">
                  <treeselect
                    v-model="form.parentId"
                    :options="menuOptions"
                    :normalizer="normalizer"
                    :show-count="true"
                    placeholder="选择上级菜单"
                  />
                </el-form-item>
              </el-col>
              <el-col :span="24">
                <el-form-item label="菜单类型" prop="menuType">
                  <el-radio-group v-model="form.menuType">
                    <el-radio label="M">目录</el-radio>
                    <el-radio label="C">菜单</el-radio>
                    <el-radio label="F">按钮</el-radio>
                  </el-radio-group>
                </el-form-item>
              </el-col>
              <el-col :span="24" v-if="form.menuType != 'F'">
                <el-form-item label="菜单图标" prop="icon">
                  <el-popover
                    placement="bottom-start"
                    width="460"
                    trigger="click"
                    @show="$refs['iconSelect'].reset()"
                  >
                    <IconSelect ref="iconSelect" @selected="selected" :active-icon="form.icon"/>
                    <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
                      <svg-icon
                        v-if="form.icon"
                        slot="prefix"
                        :icon-class="form.icon"
                        style="width: 25px;"
                      />
                      <i v-else slot="prefix" class="el-icon-search el-input__icon"/>
                    </el-input>
                  </el-popover>
                </el-form-item>
              </el-col>
              <el-col :span="12">
                <el-form-item label="菜单名称" prop="menuName">
                  <el-input v-model="form.menuName" placeholder="请输入菜单名称"/>
                </el-form-item>
              </el-col>
              <el-col :span="12">
                <el-form-item label="显示排序" prop="orderNum">
                  <el-input-number v-model="form.orderNum" controls-position="right" :min="0"/>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType != 'F'">
                <el-form-item prop="isFrame">
              <span slot="label">
                <el-tooltip content="选择是外链则路由地址需要以`http(s)://`开头" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                是否外链
              </span>
                  <el-radio-group v-model="form.isFrame">
                    <el-radio label="0">是</el-radio>
                    <el-radio label="1">否</el-radio>
                  </el-radio-group>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType != 'F'">
                <el-form-item prop="path">
              <span slot="label">
                <el-tooltip content="访问的路由地址，如：`user`，如外网地址需内链访问则以`http(s)://`开头" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                路由地址
              </span>
                  <el-input v-model="form.path" placeholder="请输入路由地址"/>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType == 'C'">
                <el-form-item prop="component">
              <span slot="label">
                <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                组件路径
              </span>
                  <el-input v-model="form.component" placeholder="请输入组件路径"/>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType != 'M'">
                <el-form-item prop="perms">
                  <el-input v-model="form.perms" placeholder="请输入权限标识" maxlength="100"/>
                  <span slot="label">
                <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(`@ss.hasPermi('system:user:list')`)"
                            placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                权限字符
              </span>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType == 'C'">
                <el-form-item prop="query">
                  <el-input v-model="form.query" placeholder="请输入路由参数" maxlength="255"/>
                  <span slot="label">
                <el-tooltip content='访问路由的默认传递参数，如：`{"id": 1, "name": "ry"}`' placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                路由参数
              </span>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType == 'C'">
                <el-form-item prop="isCache">
              <span slot="label">
                <el-tooltip content="选择是则会被`keep-alive`缓存，需要匹配组件的`name`和地址保持一致" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                是否缓存
              </span>
                  <el-radio-group v-model="form.isCache">
                    <el-radio label="0">缓存</el-radio>
                    <el-radio label="1">不缓存</el-radio>
                  </el-radio-group>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType != 'F'">
                <el-form-item prop="visible">
              <span slot="label">
                <el-tooltip content="选择隐藏则路由将不会出现在侧边栏，但仍然可以访问" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                显示状态
              </span>
                  <el-radio-group v-model="form.visible">
                    <el-radio
                      v-for="dict in dict.type.sys_show_hide"
                      :key="dict.value"
                      :label="dict.value"
                    >{{ dict.label }}
                    </el-radio>
                  </el-radio-group>
                </el-form-item>
              </el-col>
              <el-col :span="12" v-if="form.menuType != 'F'">
                <el-form-item prop="status">
              <span slot="label">
                <el-tooltip content="选择停用则路由将不会出现在侧边栏，也不能被访问" placement="top">
                <i class="el-icon-question"></i>
                </el-tooltip>
                菜单状态
              </span>
                  <el-radio-group v-model="form.status">
                    <el-radio
                      v-for="dict in dict.type.sys_normal_disable"
                      :key="dict.value"
                      :label="dict.value"
                    >{{ dict.label }}
                    </el-radio>
                  </el-radio-group>
                </el-form-item>
              </el-col>
            </el-row>
          </el-form>
          <div slot="footer" class="dialog-footer">
            <el-button type="primary" @click="submitForm">确 定</el-button>
            <el-button @click="cancel">取 消</el-button>
          </div>
        </el-dialog>
      </CustomBox>
    </ContentWrap>
  </div>
</template>

<script>
import {listMenu, getMenu, delMenu, addMenu, updateMenu} from "@/api/system/menu";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
import IconSelect from "@/components/IconSelect";

export default {
  name: "Menu",
  dicts: ['sys_show_hide', 'sys_normal_disable'],
  components: {Treeselect, IconSelect},
  data() {
    return {
      screenHeight:'',
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 菜单表格树数据
      menuList: [],
      // 菜单树选项
      menuOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部折叠
      isExpandAll: false,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        menuName: undefined,
        visible: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        menuName: [
          {required: true, message: "菜单名称不能为空", trigger: "blur"}
        ],
        orderNum: [
          {required: true, message: "菜单顺序不能为空", trigger: "blur"}
        ],
        path: [
          {required: true, message: "路由地址不能为空", trigger: "blur"}
        ]
      }
    };
  },
  created() {
    this.getList();
    this.screenHeight = document.body.clientHeight
  },
   computed: {

    getAvailableHeight() {
      return this.screenHeight - (this.showSearch ? 240 : 195)
    },
  },
  methods: {
    // 选择图标
    selected(name) {
      this.form.icon = name;
    },
    /** 查询菜单列表 */
    getList() {
      this.loading = true;
      listMenu(this.queryParams).then(response => {
        this.menuList = this.handleTree(response.data, "menuId");
        this.loading = false;
      });
    },
    /** 转换菜单数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.menuId,
        label: node.menuName,
        children: node.children
      };
    },
    /** 查询菜单下拉树结构 */
    getTreeselect() {
      listMenu().then(response => {
        this.menuOptions = [];
        const menu = {menuId: 0, menuName: '主类目', children: []};
        menu.children = this.handleTree(response.data, "menuId");
        this.menuOptions.push(menu);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        menuId: undefined,
        parentId: 0,
        menuName: undefined,
        icon: undefined,
        menuType: "M",
        orderNum: undefined,
        isFrame: "1",
        isCache: "0",
        visible: "0",
        status: "0"
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.menuId) {
        this.form.parentId = row.menuId;
      } else {
        this.form.parentId = 0;
      }
      this.open = true;
      this.title = "添加菜单";
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      getMenu(row.menuId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改菜单";
      });
    },
    /** 提交按钮 */
    submitForm: function () {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.menuId != undefined) {
            updateMenu(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addMenu(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除名称为"' + row.menuName + '"的数据项？').then(function () {
        return delMenu(row.menuId);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    }
  }
};
</script>
